Patent:US2486809
Patent: | US 2486809 |
Titel: | Biquinary system calculator |
Datum: | 01.11.1949 |
Ort: | |
Land: | USA |
Person: | Stibitz George R |
Firma: | Bell Telephone Labor Inc |
Links im Rechnerlexikon: | |
Schlagworte: | |
Link zum Patentamt: (ohne Garantie) | US2486809 (espacenet), US2486809 (uspto) |
- DATUM: 01.11.1949
- TITEL: Biquinary system calculator
- PERSON: BELL TELEPHONE LABOR INC
- Patent Family: ( Patent:BE477718, Patent:CH286552, Patent:FR951281, Patent:GB654368, Patent:NL77661C, Patent:US2486809 )